| Classification | Onagraceae: Xylopleurum |
| Classification 1 | Onagraceae: Oenothera |
| Harvard University Herbaria Barcode(s) | 00062507 |
| Type Status | Probable Type |
| Collector | J. L. Berlandier |
| Collector number | 2326/896 |
| Country | Mexico |
| State | Tamaulipas |
| Geography | North America: North America (CA, US, MX) (Region): Mexico: Tamaulipas: Matamoros |
| Locality | Circa Matamoros urbem |
| Date Collected | 1831-04-** |
| GUID | http://purl.oclc.org/net/edu.harvard.huh/guid/uuid/c26096bc-35b6-45e6-b759-6ee08ec00f1b |
| Harvard University Herbaria Barcode | 00062507 |
| Herbarium | GH |
| Family | Onagraceae |
| Type Status | Probable Type |
| Probable Type of | Xylopleurum berlandierii Spach |
| Verified by | W. T. Kittredge |
| Taxon Reference | (for Xylopleurum berlandierii Spach) Nouv. Ann. Mus. Hist. Nat. 1835. 4: 370. |
| Family | Onagraceae |
| Determination | Oenothera speciosa Nuttall |
| Determined by | P. H. Raven & D. R. Parnell |
| Determination Remarks | [current name] |
| Sex | not determined |
| Phenology | Flower |
| Preparation Type | Sheet |
| Preparation Method | Pressed |
